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FAN1616AD25X Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer FAN1616AD25X
Beschreibung 0.5A Adjustable/Fixed Low Dropout Linear Regulator
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 8 Seiten
FAN1616AD25X Datasheet, Funktion
www.fairchildsemi.com
FAN1616A
0.5A Adjustable/Fixed Low Dropout Linear Regulator
Features
• Low dropout voltage
• Load regulation: 0.05% typical
• Current limit
• On-chip thermal limiting
• Standard SOT-223 and TO-252 packages
• Three-terminal adjustable or fixed 1.8V, 2.5V, 3.3V or 5V
• Specified from -40°C to +125°C
Applications
• USB Controlled Power Supply
• High efficiency linear regulators for Mixed Voltage
Logic, ASIC, FPGA based systems
• Post regulators for switching supplies
• Battery chargers
• 12V to 5V, 3.3V, 2.5V, 1.8V, or adj linear regulators
• Motherboard clock supplies
• SDRAM Module supplies
Description
The FAN1616A, FAN1616A-1.8, -2.5, -3.3 and -5 are low
dropout three-terminal regulators with 0.5A output current
capability. These devices have been optimized for applica-
tions where transient response and minimum dropout voltage
are critical. The 5V version is designed also to be used in
USB Hub and Motherboard applications.
On-chip thermal limiting provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperatures.
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the bias current of the
FAN1616A flows into the load, increasing efficiency.
The FAN1616A series regulators are available in the
industry-standard SOT-223 and TO-252 power packages.
Typical Applications
VIN = 12V
10µF
+
FAN1616A
VIN VOUT
ADJ
VOUT = VREF(1 + R2/R1) + IAdj • R2
VIN = 9V
10µF
+
FAN1616A-3.3
VIN VOUT
GND
R1
124
+ 9V at 0.5A
22µF
R2
768
+ 3.3V at 0.5A
22µF
REV. 1.0.5 3/1/02






FAN1616AD25X Datasheet, Funktion
PRODUCT SPECIFICATION
Mechanical Dimensions
3-Lead TO-252 Package
Symbol
A
b
b2
b3
c
c2
D
E
e
H
L
L1
L3
L4
Inches
Min. Max.
.086 .094
.025 .035
.030 .045
.205 .215
.018 .024
.018 .023
.210 .245
.250 .265
.090 BSC
.370 .410
.055 .070
.108 REF
.035 .080
.025 .040
Millimeters
Min. Max.
2.19 2.39
0.64 0.89
0.76 1.14
5.21 5.46
0.46 0.61
0.46 0.58
5.33 6.22
6.35 6.73
2.29 BSC
9.40 10.41
1.40 1.78
2.74 REF
0.89 2.03
0.64 1.02
Notes
4
1
1
3
4
FAN1616A
Notes:
1. Dimensions are exclusive of mold flash, metal burrs or interlead
protrusion.
2. Stand off-height is measured from lead tip with ref. to Datum -B-.
3. Foot length is measured with ref. to Datum -A- with lead surface.
4. Thermal pad contour optional within dimension b3 and L3.
5. Formed leads to be planar with respect to one another at seating
place -C-.
6. Dimensions and tolerances per ASME Y14.5M-1994.
E
@PKG/
@HEATSINK
b3
L3
c2
D
H
E-PIN
b2 L4
b
e
A
-C-
L1
L
α = 0° 10°
-B- -A-
6 REV. 1.0.5 3/1/02

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